Valve.



N0. l869,171. PATENTES UGT. C. H. POSTER.

VALVE.

APPLICATION FILED owl, 1906.

WWNESSES: I/rQ/dNTOR Leere;

' CLAUDfYHAFVFOSTER, OF CLEVELAND, .OHIO r To all whom yit may 'cont-ern:

Be it known that I, CIJAUD H. FOSTER, a citizen Voi the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented a certain g new and useful Improvement in Valves, of which the following is a full, clear,"and exacgL description, refer'- ence being had to the accompanying drawings.

My invention relates to valves, and more particularly to valves which are applicable as Cutottt valves for use with explosi ve engines to d ivert the exhaust directly A into the atmosphere and for the operation of horns troni the exhaust of an engine,y especiallyhorns of the .type shown in my Patents Nos. 802,386 and 808,530, issued Oct. 24, 1.905 and Dec. 2G, .1905, respectively.

' In operating valves of this type in connectionwith the exhaust oi an explosive engine, it lias been found that, unless a special construction oi valve is provided, the escape of the yexhaust will beimpeded by the valve, producing sutliciont back pressure to st'op the engine. Furthermore, when operating under high pressure of exhaust, either from a multi-cylinder explosive enginc or from a steaml engine, a valve of the lap type' will, when swung across lthe exhaust pipe, be held there bythe pressure of the fluid, making it ditii cult teswing thevalve back into position to permit th e exhaust to flow through the pipe. The substitution of an ordinary three-way valve for a flap valve has bem found unsatisfactory, for the reason that in the yuse of such val've considerable friction is produced between the sante and the valve'casing and for the further reason that itis tipt to develop suiti'cient lback pressure to stop the engine,` particularly when the enthe type above referred to.

gine is rst started and before tlle cngine shaft is geared up with the drive shalt.y t v The objects of my invention are the production of a valve wh ich is capable oi receiving the exhaust fronrexplosive-engines,and distributing the saine either to the mutller or to a pipe leading to another point ,of discharge without producing undue accumulation of back pressure. This other point taf-discharge may be dirtectly to the atmosphere or indirectly thereto through a 4horn of A furtherfrobject ofthe invention is the production oi a valve that may he operated with a minimum of friction and that will automatically remove any dep'os'it of carbon that may be formed within th eivalve casing.

Generally speaking, the invention may be dotined as consisting of the combinationof elements, forthe purposes set forth, embodied in the claims hereto annexed.

Referring l'othe drawings, Figure l represents a view,

applied to the exhaust pipe of an explosive engine, with a horn applied to the pipe which receives the exhaust awhen the muiiier is cut out; Fig. 2 represents arten- 'Speceaton of Letters Patent. Application filed October l, 1906. Serial N0. 336.9564

- VALVE'.

Patented Oct. 2,2, 190'?.

lai-ged sectional view of the valve and ine associated parts, showing the valve in position to dischargethe entire exhaust into the inutiler Iconnection;.l `ig'. 3 represents a similar view showing the valve in position to divide the exhaust between the two outlet Aconnections; Fig, 4 represents an end eleva-tion of the valve and its associated parts; and Fig. 5 represents a longitudinal sectional vview of the valve and associated parts, taken onthe line 5 5 of Fig. 2. I i i Describing the parts by reference numerals, l

length thereof. 'l`helnanches2 and 3 receive the inlet haust pipe. cated) where the exhaust is troni an explosive engine. The branch 4 has connected thereto the pipe 'l which may lead to ahorn 8. This' horn is preferably oi the 808,530, previously referred to.- It has been found ceive and be operated by the entire exhaust from the engine, thereby avoiding the stopping of the engine i by such horns. l v

As will appear from' th'e drawing, the branch 4 of the tee is located close to the outlet branch G, whereby a `narrow partition is provid ed between the branches 4- and G, for a purpose to be hereinafter described.

Within the tee is located the rotary valve 0. The body of the valve is provided with a pair of heads l0 and l0L (see Fig. 5) the latter having a ledge ll overlapping the body of the tee to form a seat thereon and the'forrner 'fitting withinand having its suriacesubstantially flush with the edge Ol the casing of said tee.' The plate l2 is secured to the liead 10, as by means of a c entral screw 13, ai pin 14 extei-iding through said head and plate toprevent rotation of the latter on the former,

riphery thereof, said recess terminating in shoulders lt ',or engagement by a stop pin 17 projecting from the Wall 0i the tee. "he head l0 is provided with any suitable operating means, as a leverlS, said lever being of a set screw 20.

' l The leven 18' is` provided with one or more 'perforations 18 arlfjacent the outer end thereof to permit the application thereto of the cord or cable 18b leading to in the body of the vehicle.

The valve is provided with two ports 2l and 22 extending lengthwise thereof. Each of these ports extends from the head 10 nearly to the head l0, leaving a flange therewith, the inner pr'ojectiox'i of the flange being not and outlet branches 5 and 6 respectively ot' the ex- ,t

The latter 'may lead to a in uiiler (as indi- Construction shown in my Patents Nos. 802,386 andiy that, in operation, horns of this type are adapted to ,rei secured in a boss 19- projecting from said head by means the foot'lever or other operating mechanism (not shown) i rep- -v resents a tee or casing having twooppositely arranged branches 2 and Cl and a branch 4 at right angles to the v engine with 'considerably less back pressure than .that `produced by the Inuller'o the ordinary explosive-` The plate 12 is provided with a recess l5 at the pei `23 projecting inwardly into the tee t0 forni a bearing I.

i l( n'eater-than the distanee to the bore of the tee to preol the exhaust (luid to the horn vent obstrnetion ol' the pressure tluid supplied io and from said tee 'lho port ll is substantially 180 degrees in width. and tht` port `s eonsiderahly narrower. being about o() degrees. lt is sulleiently wide. however, to -enable it when in register with the outlet branch il to dist-hinge the exhaust reeeived from the inlet branch 2 without throttlingl. 'l`he width ol the port 2l is amply` snlieient to permit the port22 'to register fully with the braneb 4 and to register hilly with the branch 3, Vwithout throt tling the supply of the pipe 5 into the tee. This will be apparent -lroin an inspet-tiou ol Figs. l and 2, wherein the valve is sh'oivn in positions to divert all and to the outlet brauch respeetively. As will appear i'roin said figures, when the valve isin position lo divert all ot' the exhaust into the braneh 4, the valve wall Z5 entirely closes communit-ation between the valve. ehaniber and branch 3. lhe provision ol the recess l5 and shoulders lliv in the plate l/l with the stoppin l7 limits the movement ol' the valve in either direction by the lever i8 and prevents fluid from eseapiner into branch 3 when the. valve moved to its`limit in thel direction to supply braneh 3. Hy this eonstruetion, I am enabled to reduce to a minimum the hearing surfaee between the body ol the valve and the interior ol the teo and to reduee to a minimum the l'rietiou between these parts. rlhe inwardly direttedtlangre 22lal`l`ords suilieient bearing surfar'e at the .side ol the tee to prevent leakage ol iluid at this point and at the same time does not materially add to the bearing.T surt'aee bettveen the' valve body and the tee. In the use o my valve with explosive engines. it'. has been found that a considerable `quantity ot` uneonsinned earbou is deposited within the walls ol' the iee or valve easing. The accumulation ol this carbon inlerferes with the operation `of the valve and, to ohviai'e the inonvenienee caused thereby, l provide kuiteedges at opposite sides of the valve' Walls Zland 25. ly rotating the valve, these knife edges ivill remove any carbon thatmay be deposited on the portions of the tee or valve easing that are in their path of movement. By removingr the Ipin 17, the valve may be f riven acomplete rotation in both directions. enablingr it lo remove all of the lcarbon that may have been deposited within the valve casing or tee. In addition to this, the valve. in its normal operation, will clean sneh portions ol` the casing as are Within its range oimovelnent.-

Aapreviously indieated.\the lever or `handle i8 is connected with the eahle 18" leadingr to the i'ootlever Yin the vehicle. The normal position ot' the valve is with the parts as shown in Fig. 2. vvherein the exhaust is beingr diseharged into the inutller. 5 When the ieperator depresses the foot lever, the valve is moved to the position shoyvnin Fig. l. To return the valve to its normal position when' the operator has tiiiished soundingr the horn or operating the eut-out. and has released thetoot. lever, l employ a spring 26, Whieh is eonneeted Witlrthe valve hodyin such manner as to return the saine antomatieally to the position shown in Fig. 2. Forthis'purpose, the spring may be of the spiral spring type havingl the sereW 13 extendiig through the body of the spiral7 vrith one end of the, spring engaging a pin 27 projecting'from the head 14 and the other end engaging or secured to the stop pin 17. A convenient mantohe supplied therethrough without. the ereatiou oi:

Quell bar-k pressure as will stop an explosive engine.

. Oi eoinse, no sueh dil'iculty arises when the port 22 is -the narrowness ol' the partition 740 and the Width of the port 22 enable a portion of the exhaust to be diverted through the connection (i as Well as through the conueetion 7, .thereby prevent ingthe hack pressure i'rom eeeeding, that' normally due to the muffler. The length of the recess and slot 15 is such that. When one of the shoulders IG is'ii'i engagement with the pin `i7 the exhaust will he diverted entirely into the horn connection and when the other shoulder is in engagement, With said pin, the exhaust is diverted entirely through the outlet. eonneetion. (i. ln operai-ing under high pressure ol' fluid. as Where the valve employed ivith steam under high pressure or with a. large nmltieylinder explosive engine, the shape anrl eonstruetion ot the valve' render it easy ol"operaiion against the pressure of the fluid, whieh is notl the ease with agate valve.

Loeatinglhe eo'nnet-tion 7 and branch -l closely adjaeent to the mulller Connection 3 with a narrow partition therelntween enables'me to lessen the Width of the port 22 as Well as the range oi movement. oi the valve. 'lhis permits ol' a red notion el the metal in said i 'alve to a minimum. with a eorrespondiug red'uction ot' tric-tion heliveen the same and the interior of thetee or valve easing. Moreover, the shape ot' the valve materially eontributes to'the a voitlanee ol',haek pressure; being preferably eylind'rieal in shape with a concave interior. whereby the exhaust admitted i-nlo the valve body through theinlet brauch ol the exhaust pipe is deile'etved readily and with comparatively little frietion into either ot' theont'lot br-.tn'ehes ol' the easingor tee.

l. 'lhe combination. with the exhaust pipe ol" an explosive engine. ol' a valve easing' or tee in said pipe, and :t rotary vnlve body in said tee or easing; having; an inlet port :ind an outlet port, the wall of said valve body being provided with 'vullingT edges .-idjaeent said ports, and a removable stop for liinitin'gthe rotation of said body. slibstantiallyl nsA speeilied,

The combination. with a tlnid supply pipe, of a rotary valve body therein bovini;l an outlet port. the wall of the valve body adjaeent/ said port, being.' provided with n cutting edge. means I'or rotating,Y said valve, and a removable stop for limiting: snih rotation. substantially as speoiiied.

Il. 'lbe eombination, with a iluid supply pipe. or' :i rotary valve therein t-oniprisintY a easingl and a hollow valve body having our` or more ports. said valve body being; provided with a cutting edge. means for rotating said body. and a removable stop for limiting such rotation. substantially as speeilied. l

l. The eolnbination of a main lluid supply pipe. a brani-li pipe connected thereto, and a` rotary valve at the iuuetion oi" said pipes, said valve comprisingT a easingr and a valvrx body having therein tivo ports, one of; said ports llt) vlimit the 'substantially as speciie'd.,

being substantially 180 degrees in width and the other being olfsuiiicient width to register with the branch pipe connection and the exhaust branch of the supply pipe, the interior of-said valve body beingl substantially cylindrical, substantially as speciiied,

5. A valve for' exhaust pipes of automobiles and the like, said valve comprising a cylindrical casing having an inlet connection and a pair of outlet connections, a rotary cylindrical valve body in said casing, said valve body having ports extending substantially the-length thereof, one of said ports being substantially 180 degrees in width and the other Abeing ot a' Width to register fully wih either ol' the outlet connections, heads closing the ends of Y the valve body, one of said heads engaging the outer surface of the casing and having a ilange projecting inwardly therefrom and' tting the valve casing, said flange terminatingl short of the bore'ot the inlet connection, substantially as specified.`

(l. A valve for exhaust pipes of automobiles and the like, said valve comprising a cylindrical casing having an inlet connection and a pair ot'poutlct connections, a rotary valve body in said casing, said valve body having ports extending substantially the length thereof, lone oi said ports being substantially lSO degrees in width andthe other' being of a width to reg' tortully with either of the outletconnections, heads cl ing the ends of the valve body, and a flange projecting inwardly from one of said heads into cach eient width to register with either or both of the exhaust.

connections, and means for rotating said valve, vsubstantially as specified. l

'.l`hc combination of a tee or casing having a valve seat therein and provided with an inlet. connection-and a pair oi" outlet connections, a lvalve in said tee or casing having va wide inlet port and a single outlet port adapted to communicate with either oil-said outlet connections, iueansfor rotating said valve in one direction, means counccted' with said valve 'andadapted to rotate the same in the opposite direction, and stop mechanism arranged to rotation ot the valve in either direction,

5). The combination afa tee or casing having a valve seat therein provided with an inlet connection and a pair ot'.- outlet connections, aI rotary valve body-therein having an inlet port and an outlet port adapted to register with f eithcrot the outlet connections, said valve body [having at one end a head providid with stop shoulders, a pin carried byysaid casing and projecting between said shoulders, av

spring support carriedvby the central portion of said head, a spring on said support and having one end engaging said pinI a second pin projecting from said head and engaged by the' other end o'f said\ spring, and means for rotating said valve agaius'tthe action of said spring, substantially y either of theo'uilet connections, means for rotatingfsaid' vulve in one direction a pin on the casing, stops carried by` the valve'bodyfor limiting the movement of said valve in either direction, vand a spring connected witlrsaid valve and ,engaging said pin for rotating the valve in the opposite direction from the rotating'means, substantiallyy as cs peciiied.

11. The combination, with the exhaust pipe of an cxplosive engine, of a branch pipe connected thereto, and a valve aty the junction ot' said pipes, Asaid valve comprising a casing having an iulet port and an outlet port adapted` to discharge iluid into the branch pipe, and a rotary hollow valve body in said casing having a port for the reception ot" iluid trom the exhaust pipe and an outlet port, thewail of said body adjacent said `ouilet port being provided with a cutting edge, substantially' as speciiicd.-

-12. The combination of a main tluid pipe, of a branch pipe connected thereto, and a rotary valve at the junction ol said pipes, said valve `having therein two ports, said ports being so proportioned and arranged relatively to said pipes that one of them may be in continuous communication with the inlet side of the main pipe while the othefi is in position to divert the fluid intoeither thel branch pipe,'the outlet side of the main pipe, or into both,

Without materially impedin'g the iiow'oi: the iiuid through said valve, substantially as specified.

13. 'The combination of a tee4 having .a valve 'seat therein, an engine exhaust pipe comprisingr an inlet branch and two outlet branches communicating With'said tee, a rotary valve body in said tee, said valve body having two ports therein, said ports being so proportioned and located with reference to the inlet and outlet branches that one of said ports may be in continuous communication with tbe inlet branch while the other port is in communication with either, or both, of the outlet branches, and means for rorating,l said valve, substantially as speciiied. v

14, ',ihe combination-tot' a tee having oppositely arranged inlet and outlet connections and .an intermediate branch connection adjacent said outlet connection with a' narrow partition therebetween, a valve body in said tee having two ports therein, said ports being so located and proportioned that one of them is in continuous communication with the inlet connection while the .other is in communication with the branch conuectior the outlet connection, or both, and means whereby said valve may' be rotated, substantially as specified.

l?. The combinationwith the exhaust pipe or`an engine, of a tec in said pipe, said tee having connections for' the inlet and 'outlet portions of such pipe and a connection intermediate of said former connections, a rotary valve in said tee, said valve having two ports therein, said ports being so proportioned and arranged that one ol' them will be in continuous communication with the inlet connection of the tee while the other is in communication with either the outlet connection, the intermediate connection, or both,

land means for limiting the movement ot' said valve to prevent the latter port from being moved to any other position than to communicate with either or both of its connections,

vsubstantially as specified.

16.,'lhe combination of a tee having a valve seat therein and .having oppositely arranged inlet and outlet. connections for iiuid and a branch connection intermediatel of saldltirst-mentioned connections, a' rotary valve within said tee having at one end a plate engaging the casing of the tee, said plate having a slot therein, apin projecting Afrom said casing intosaid slot, said valve being provided `with twof ports', the relative sizes and arrangement of such ports andslot'being such that, vvhen the pin is in en# igemcnt lwith the plate at one end of the slot` one oi' said ,y

ports is in communication-,with the outlet connection of the tee, and when the pin is in engagement with thc slot at the other end -of the plate said port vis in connnuniciitit'm4 `with the intermediateconnection, the `other port Vbeing in 

